Thanks for the suggestion, Ed...
>>Have you stated which version of CT you are running?  I have found 
differences in the lpt wiring on versions pre 9.27.<<
I thought of that, but I don't think that's the problem because the interface 
behaves the same way with a demo copy of DX4WIN for Windows 3.1.  I also 
tried my old -XT clone with CT version 7 (I don't think 9.xx will run on an 
-XT) and observed the same problem.
I am currently using CT version 9.50.
73,
Frank
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